I was watching my friend giving some life advice few days back. I started to wonder that we all have different version of life and different lessons learned as we progressed. However, there has to be some sort of common thread among all of these lessons. Things that we can learn on our own or from watching others to grow in business or in life in general. Considering how many of us in this forum have learned from our hard days, taking action and then rebuilding every now and then. I wanted to ask you guys a question, If you have to give one "street-smart" advice to someone, what it would be? Something you learned the hard way and you want to share it with those who are likely to make mistakes like you. Please do share.